Toilet



, Dec. 21, 1948. J, 'F MOLLOY 2,456,885

TOILET Filed Aug.` 26, 1948 INVENToR. JAMES E' IVO/ Loy ATTORNEY Patented Dec. 2l, 1948 'roiLE'r l James F. Molloy', oakland, Calif. Application August 26, 194s, serial No. 46,337

4 Claims.

This invention relates to improvements in the structure of the bowl and the outlet therefrom of non-siphoning toilets.

Another object is the elimination of noise in the flushing cycle of toilets.

Another object is to increase the velocity of the outgoing water and reduce the tendency to accumulate organic matter on the wall surface of the outlet.

A further object is the avoidance of the tendency of toilet flushes to suck air into the outlet during the ushing cycle.

Flushing toilets fall into two general classes, the more commonv type depending upon the Siphon principle to exhaust the contents of the bowl. Another type accelerates the out iiow by a water jet action into the outlet. Because of the relatively large internal diameter of the outlet necessary for the passage of fecal and other matter disposed of therethrough, the outflow results in a siphonic action causing an aspirating suction drawing in air with a noisy discharge of the contents of the bowl, especially in the last stage of the outflow. When the jet action is added to the siphonic type the noise of the jet is added to the noise of the siphonic iiow.

Various attempts, in the form of retarding means in the final or gravity flow of the outlet, have been made to reduce the incidental noise. But the negative action of the siphon is still present with its many disadvantages.

The present invention acts positively, in contrast to the negative siphonic actiornand no aeration of the outow of water results, because of the maintained density and centrifugal action of the discharge passage; in contrast to the usual inverted U shape of the siphon and jet types of iiushers.

Other objects and advantages will appear as the description progresses. In the specification and the accompanying drawings the invention is disclosed in its preferred form. But it is to be understood that it is not limited to this form; because it may be embodied in modifications within the spirit of the invention as defined in the claims following the description.

In the one sheet of drawings:

Fig. 1 is avertical section on the line I--I Fig. 2, of a toilet constructed in accordance with this invention.

Fig. 2 is a horizontal sectional detail of the discharge trap of the same.

2 Fig. `3 is a detail in side elevation, partially i vertical section, showing a modified structure of the outlet helix. r

In detail the structure shown in Fig. 1, comprises the bowl I, having the integral base 2 resting upon the floor. The upper edge of the bowl has the hollow duct 3 connected with the inlet pipe 4. From the inlet pipe the incoming water spreads out and enters the duct 3, from which it escapes through the jets such as 5 inter.- spaced around the duct and discharging' dow the inner wall of the bowl.

The rear portion of the bowl has the integral cylindrical trap chamber` 6, into which the contents of the bowl are discharged through the tangential outlet 1. The bottom of the chamber has the central outlet neck 8 extending into and sealed to the soil pipe 9, which is connected with the sewer in the usual manner. This chamber is closed at the top by the gasket sealed transparent cover I0.

The accelerating helix block II, preferably composed of a yielding compound, such as rubber or a suitable plastic, snugly fits within the .trap and seals against the inner wall where it contacts the wall and the bottom of the trap chamber 6. It has the tangential inlet I2 alined with the outlet 1 from the bowl I. This inlet I2 continues upward as a helical groove I3 in the perimeter of the helix block. This groove is sealed by the surrounding wall of the trap 6, until it reaches the top of the block, where it discharges into the flared opening I4 of the vertical discharge outlet I5.

The water level IB in the bowl supplied through the service pipe I1' includes the greater portion of the helical groove I3 and traps off any gases that may rise from the sewer 9 into the upper portion of the sealed chamber 6.

Before removing the cover I0, the inlet pipe 4 is disconnected from the tank and the bowl. The cover is then removed through the side door I9 permitting access to the helix block I I for inspection or removal from the trap chamber 6, without disturbing the installation of the bowl and its sewer connections.

This invention operates substantially as follows: When the water is released from the water tank I'I or other source, in the usual manner, it rushes through the inlet pipe 4 and jets through the openings 5 into the bowl I. The weight of this sudden volume of water causes the water to rush from the bowl through the tangential outlet 1 into the groove I3 of the helix at considerable velocity, carrying with it the contents of the bowl. Rising through the helix groove the former contents of the bowl, represented by the water level I6, passes downwardly through the discharge passage I5 and into the sewer. The water level I6 is then restored by fresh water from the tank I'I in the final stage of the ushing cycle.

The side portion of the housing I8 has an opening closed and sealed by the door I9. This opening provides means for inspection, removal or replacemritof the block I I. f' i v i A particular advantage of the present struc' ture, is the omission of the complicated inverted U trap in the usual Siphon types of bowls, with* the incidental disadvantages described above.

The admission of the volume of water during" the Bushing cycle, which must escape tliroihfli the tangential outlet '1, causes an acceleration ci the flow through the helical groove I3. 'This' creates a centrifugal action around the' groove- Which maintains the density of the Water, preventing aspiration of air that would aerate the water vand create suckingeand gurgling noises'-so common to many of the present forms of toilets. This acceleration of flow also inGreasesth-e scouring vaction of the owing water. preventing the accumulation of -fecal matter on the surface-of the block II andthe interior of the trap chamber 6.

The water spread laterally by the centrifugal action at the top of the block II, decelerates the I-iovv downward through the dischargev opening `I 5, breaking any noisy siphoning velect at this point. The plastic naturey of the block II `also has a de'adenirlgv effect on any noise that may be 'inch dental to the discharge of the contents' of the bowl.

Fig. 3 shows a simplified i'orrii of the helical discharge' adapted to the cheaper types of vtoilet iixtures, dispensing with the more elaborate'y and concealed trap-` chamber' structure .6,- 'above fie- Y scribed. It is preferably formed of an integral length 'of transparent plastic tubing 12:11, bent into the forin of a helix with the vertical discharge centrally of the helix, and connected with the sewer pipe 9, as described. The transparent helix Vpermits easy checking of the working conditions 1. A tdi'lt Abowl witli'a water inlet a tangential outlet and a trap chamber open to said Aoutlet and having a sewer discharge outlet; and a .block sealed in said trap chamber and having a helical groove in its perimeter and a central pas- `sae therethrough and connecting with the sewer .discharge outlet o f ..said chamber.

.portion I'm' bent downward', eitheroutsi'de' or v2. A toilet having a bowl with a water inlet and .'outlet, and a trap chamber open to said outlet and having a sewer outlet; and a block within said trap and having'a helical groove in its perim- .eter and a central vpassage therethrough connecting with said sewer outlet. l i

3. lAtoilet bowl withfa water. inlet and a discharge outlet; a trap chamber open to said. bowl outlet and having a sewer .discharge outlet; ay

block sealed in saidr trap and having a helical groove in its vperimeter ,andl a central outlet therethrough connecting with said sewer discharge outlet .from said trap chamber; and a re.-

movable `cover sealing `the top of said trap 'n chamber.

4. A toilet bowl with a water inlet and .a discharge outlet; :1 trap chamber having a tangential inlet connected with the outlet`from said bowl and having a sewer discharge outlet; -a cover sealing the top of said trap chamber;.ablo'clfl sealed in said trap chamber and'having a helical passage therein connected4 with the discharge outlet from said bowl andto thesewer dischargeoutletfrom said chamber; and means for supplying wjater to said bowl. f i y Y. v`JAMES E. MOLLOY.

No references cited. l 

